Support for Android armv7 and aarch64 target triples

ports/servo/.cargo/config

@@ -1,7 +1,15 @@
 [target.arm-linux-androideabi]
-linker = "./fake-ld.sh"
+linker = "./fake-ld-arm.sh"
 ar = "arm-linux-androideabi-ar"
 
+[target.armv7-linux-androideabi]
+linker = "./fake-ld-armv7.sh"
+ar = "arm-linux-androideabi-ar"
+
+[target.aarch64-linux-android]
+linker = "./fake-ld-arm64.sh"
+ar = "aarch64-linux-android-ar"
+
 [target.arm-unknown-linux-gnueabihf]
 linker = "arm-linux-gnueabihf-gcc"
 ar = "arm-linux-gnueabihf-ar"

ports/servo/build.rs

@@ -32,13 +32,11 @@ fn android_main() {
         _ => panic!("Unknown support android cross-compile host: {}", host)
     };
 
-    let toolchain_path = ndk_path.join("toolchains").join("arm-linux-androideabi-4.9").join("prebuilt").
-        join(google_host);
-    println!("toolchain path is: {}", toolchain_path.to_str().unwrap());
-
     let target = env::var("TARGET").unwrap();
     let arch = if target.contains("arm") {
         "arch-arm"
+    } else if target.contains("aarch64") {
+        "arch-arm64"
     } else if target.contains("x86") {
         "arch-x86"
     } else if target.contains("mips") {
@@ -47,16 +45,32 @@ fn android_main() {
         panic!("Invalid target architecture {}", target);
     };
 
+    let platform = if target.contains("aarch64") {
+        "android-21"
+    } else {
+        "android-18"
+    };
+
+    let toolchain = if target.contains("armv7") {
+        "arm-linux-androideabi".into()
+    } else {
+        target
+    };
+
+    let toolchain_path = ndk_path.join("toolchains").join(format!("{}-4.9", toolchain)).join("prebuilt").
+        join(google_host);
+    println!("toolchain path is: {}", toolchain_path.to_str().unwrap());
+
     // Get the output directory.
     let out_dir = env::var("OUT_DIR").ok().expect("Cargo should have set the OUT_DIR environment variable");
     let directory = Path::new(&out_dir);
 
     // compiling android_native_app_glue.c
-    if Command::new(toolchain_path.join("bin").join("arm-linux-androideabi-gcc"))
+    if Command::new(toolchain_path.join("bin").join(format!("{}-gcc", toolchain)))
         .arg(ndk_path.join("sources").join("android").join("native_app_glue").join("android_native_app_glue.c"))
         .arg("-c")
         .arg("-o").arg(directory.join("android_native_app_glue.o"))
-        .arg("--sysroot").arg(ndk_path.join("platforms").join("android-18").join(arch))
+        .arg("--sysroot").arg(ndk_path.join("platforms").join(platform).join(arch))
         .stdout(Stdio::inherit())
         .stderr(Stdio::inherit())
         .status().unwrap().code().unwrap() != 0

ports/servo/fake-ld-arm.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+source fake-ld.sh
+
+export _GCC_PARAMS="${@}"
+call_gcc "arch-arm" "arm-linux-androideabi-4.9" "android-18" "armeabi"

ports/servo/fake-ld-arm64.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+source fake-ld.sh
+
+export _GCC_PARAMS="${@}"
+call_gcc "arch-arm64" "aarch64-linux-android-4.9" "android-21" "arm64-v8a"

ports/servo/fake-ld-armv7.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+source fake-ld.sh
+
+export _GCC_PARAMS="${@}"
+call_gcc "arch-arm" "arm-linux-androideabi-4.9" "android-18" "armeabi-v7a"

ports/servo/fake-ld.sh

@@ -8,26 +8,31 @@ set -o errexit
 set -o nounset
 set -o pipefail
 
-TARGET_DIR="${OUT_DIR}/../../.."
+call_gcc()
+{
+  TARGET_DIR="${OUT_DIR}/../../.."
 
-export _ANDROID_ARCH=arch-arm
-export ANDROID_SYSROOT="${ANDROID_NDK}/platforms/android-18/${_ANDROID_ARCH}"
-export _ANDROID_EABI=arm-linux-androideabi-4.9
-ANDROID_TOOLCHAIN=""
-for host in "linux-x86_64" "linux-x86" "darwin-x86_64" "darwin-x86"; do
-  if [[ -d "${ANDROID_NDK}/toolchains/${_ANDROID_EABI}/prebuilt/${host}/bin" ]]; then
-    ANDROID_TOOLCHAIN="${ANDROID_NDK}/toolchains/${_ANDROID_EABI}/prebuilt/${host}/bin"
-    break
-  fi
-done
+  export _ANDROID_ARCH=$1
+  export _ANDROID_EABI=$2
+  export _ANDROID_PLATFORM=$3
+  export ANDROID_SYSROOT="${ANDROID_NDK}/platforms/${_ANDROID_PLATFORM}/${_ANDROID_ARCH}"
+  ANDROID_TOOLCHAIN=""
+  for host in "linux-x86_64" "linux-x86" "darwin-x86_64" "darwin-x86"; do
+    if [[ -d "${ANDROID_NDK}/toolchains/${_ANDROID_EABI}/prebuilt/${host}/bin" ]]; then
+      ANDROID_TOOLCHAIN="${ANDROID_NDK}/toolchains/${_ANDROID_EABI}/prebuilt/${host}/bin"
+      break
+    fi
+  done
 
-ANDROID_CPU_ARCH_DIR=armeabi
-ANDROID_CXX_LIBS="${ANDROID_NDK}/sources/cxx-stl/llvm-libc++/libs/${ANDROID_CPU_ARCH_DIR}"
+  ANDROID_CPU_ARCH_DIR=$4
+  ANDROID_CXX_LIBS="${ANDROID_NDK}/sources/cxx-stl/llvm-libc++/libs/${ANDROID_CPU_ARCH_DIR}"
 
-echo "toolchain: ${ANDROID_TOOLCHAIN}"
-echo "libs dir: ${ANDROID_CXX_LIBS}"
-echo "sysroot: ${ANDROID_SYSROOT}"
+  echo "toolchain: ${ANDROID_TOOLCHAIN}"
+  echo "libs dir: ${ANDROID_CXX_LIBS}"
+  echo "sysroot: ${ANDROID_SYSROOT}"
+  echo "targetdir: ${ANDROID_CXX_LIBS}"
 
-"${ANDROID_TOOLCHAIN}/arm-linux-androideabi-gcc" \
-  --sysroot="${ANDROID_SYSROOT}" -L "${ANDROID_CXX_LIBS}" "${@}" -lc++ \
-  -o "${TARGET_DIR}/libservo.so" -shared && touch "${TARGET_DIR}/servo"
+  "${ANDROID_TOOLCHAIN}/arm-linux-androideabi-gcc" \
+    --sysroot="${ANDROID_SYSROOT}" -L "${ANDROID_CXX_LIBS}" ${_GCC_PARAMS} -lc++ \
+    -o "${TARGET_DIR}/libservo.so" -shared && touch "${TARGET_DIR}/servo"
+}